On a rainy night in Denver, cab driver Murph picks up a shady character at Union Station. His name is Zelner and he’s worried that the police might be following the taxi. When Murph reaches his passenger’s destination, Zelner is dead. Now it’s not just the police who are interested. Murph, who never wants to get involved in the lives—or deaths—of his fares, is about to be swept up in international intrigue.